Relativity and Cosmology


Self-Gravitating Gaseous Spheres in 5D Framework

Authors: Evrim Ersin Kangal

One of the suitable theoretical idea for the polytrope in the Kaluza-Klein cosmology is discussed. Assuming a 5-dimensional (5D) spacetime model described by the Kaluza-Klein theory of gravity, we implement the energy density and pressure of the polytrope which is a self-gravitating gaseous sphere and still very useful as a crude approximation to more realistic stellar models. Next, we obtain the best-fit values of the auxiliary parameters given in the model according to the recent observational dataset. Finally, we study some cosmological features and the thermodynamical stability of the model.

Comments: 23 Pages.

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Submission history

[v1] 2018-10-24 08:02:16

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